Nile communities carefully monitored and recorded the river’s flow. Centuries later these records are still being used by water resource managers around the world to analyse unpredictable river flows.
New research published in the journal Nature reveals that more than 1.2 million flow barriers exist on European rivers and that approximately 10% are obsolete.
Treaties are needed to govern water resource allocation in the Nile basin region. For this to happen it's critical to have accurate data on how much water there is.